Seriously, Have We Time Traveled?

Are we back in the 1950s or something where a smart, successful young woman dreams only of getting knocked up?  Seriously, Jessica Alba, Britney Spears, and now, Lily Allen?  I am honestly in shock at trend for young baby-makin'!  As a feminist, I totally believe it's everyone's personal choice... and these woman certainly have the financial and professional ability to have babies at 22 years old, versus most of us. 

But I do have to admit, I'm a bit confused.  I might even admit that I'm a little judgemental, even if my politics don't want me to be.